P£LTIGER\.] PKLTIGEREI. 289 



(Ach.) Gray, Nat. Arr. i. p. 428. Lichenoides digiiaUtm rufescens, 

 fuliis lahicre crisjjis Dill. Muse. 203, t. 27. f. 103. Lichenoides i>el- 

 iatum terrestre rufescens Dill, in Hay Syn. ed. 3, p. 76, n. 88. — 

 Brit. Exs. : Cromb. n. 43 ; Bohl. n. 8/'. 



The smaller, smoother, more crisp thallus, and the difference of 

 colour, as also the darker or brownish veins of the undei-side, distiujruish 

 this from P. canina, to which it is intimately allied. AVhether it is to 

 be regarded as specifically distinct is doubtful, since intermediate states 

 occur by which they may be connected. The apothecia when present 

 are numerous, though it is often sterile. 



Hob. Among mosses on shady rocks and the stumps of felled trees in 

 maritime and mountainous districts. — Distr. Eather local and uncommon 

 in the Channel Islands, AV. and X. England, N. "Wales, the S.AV. High- 

 lands of Scotland, and S. Ireland. — B. M. : Island of Guernsey. Near 

 Totnes, S. Devon; Penzance, Cornwall; Cii-encester, Gloucestershire; 

 Ilafod, Cardiganshire; Aberdovey, Merionethshire; Windermere and near 

 Kendal, Westmoreland. New Galloway, Kirkcudbrightshire ; Barcaldine, 

 Argyleshire : Eannoch, Perthshire; Comemulzie, Braemar, Aberdeen- 

 shire ; S. of Fort AVilliam, Inverness-shire. Rosscarbery, co. Cork. 



Form praetextata Florke in Somm. Lapp. Suppl. (1S26) p. 123, 

 — Thallus with the lobes isidiiferous or minutely squamulose at the 

 margins: otherwise as in the type. — Cromb. Liuu. 8oc. Journ. Bot. 

 xvii. p. 574. — Peltir/era canina, var. y. limbata (non Del.) Mudd, 

 Man. p. 83. P. canina var. crisjia Leight. Lich. Fl. ed. 3, p. Iu2. 

 P. canina form Jejjidophora (non Nvl.) Cromb. Grevillea, xv. p. 77. 

 —Brit. Exs. : Mudd, n. 60 ; Leight.' n. 262 ; Larb. Lich. Hb. n. 46 ; 

 Bohl. n. 30. 



Well marked by the isidiuso-subgranulose excrescences by which the 

 margins of the lobes are bordered (often densely), and which may be 

 also scattered here and there upon their surface. It is not uncommon in 

 fructification, the apothecia sometimes becoming large. Pycnides similar 

 to those of P. canina are fi'equent on the marginal squamules. 



Hab. Among mosses on shady rocks and walls, rarely on the gi'ound, 

 generally near water, in upland districts. — Distr. Somewhat local, but 

 common in Great Britain and Ireland ; rare in the Channel Islands ; 

 plentiful on the Grfimpians, Scotland. — B. M. : Bezel, Island of Jersev. 

 Lustleigh and Widdecombe, S. Devon ; Bocconoc, Cornwall ; near Wor- 

 cester ; Barmouth and Dolgelly, Merionethshire ; Easby and Sowerdale, 

 Cleveland, Yorkshire ; Teesdale, Durham ; near Kendal, AA'e.-tmoreland ; 

 Keswick, Cumberland. Appin, Argyleshire; Glen Lochay, Killin, and 

 Glen Fender, Blair Athole, Perthshire ; Craig Climy, Braemar, Aber- 

 deenshire ; S. of Fort William, Inverness-shire ; Island of Skye. Kil- 

 laruey, co. Kerry ; Glendalough, Connemara, co. Galway. 



4. P. spuria Leight. Lich. Fl. (1S71) p. 108. — Thallus small, 

 subsimple, digitately lobed, ascending or siiberect, adpresso-tomen- 

 tellose, smooth, greyish-green ; beneath whitish, with coarse con- 

 colorous nerves and a few short rhizinae. Apothecia small, sub- 

 rotuudate, at length oblongo-revolute, brown or reddish-brown, the 

 margin crenulate or denticulate : spores aciculari-fusiform, 3-7. 



u 



